MyCleanWater

Clearlake, California Water Quality Report

Water quality data for 3 water systems serving 13,700 people.

85
Good
out of 100

Water Source

3
Water Systems
14K
People Served
Surface water, Ground water
Water Source

Detected Contaminants

ContaminantDetected LevelEPA Limit (MCL)Health Guideline% of LimitStatus
lithium25.0 No federal limit10.0 ug/L(EPA/USGS HBSL)
250%
Above guideline
PFBA0.008 No federal limit1000.0 ug/L(EWG)
0%
Below guideline
PFPeA0.004 No federal limit1000.0 ug/L(EWG)
0%
Below guideline

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Compliance & Violations

Active Violations (13)

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Violation

Unknown

minor

Resolved Violations (38)

02

Apr 1, 2021 — Jun 30, 2021

critical

02

Apr 1, 2021 — Jun 30, 2021

critical

02

Jan 1, 2021 — Mar 31, 2021

critical

02

Jan 1, 2021 — Mar 31, 2021

critical

52

Oct 1, 2019

moderate

+ 33 more resolved violations

Frequently Asked Questions

Is Clearlake tap water safe to drink?

Clearlake's water meets all EPA maximum contaminant levels. However, 3 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.

What contaminants are in Clearlake tap water?

3 contaminants have been detected in Clearlake's water supply across 3 water systems. See the full contaminant table above for details.

How can I improve my water quality in Clearlake?

Install a water filter rated for the specific contaminants found in Clearlake's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.

Does Clearlake have any water quality violations?

Yes, Clearlake currently has 13 active violations. See the violations section above for details.